The sales forecasting method that consists of making a product available to buyers in one or more locations and measuring purchase response is
a. a market test
b. regression analysis
c. trend analysis
d. a survey
e. the delphi technique

Market test (a)

Explanation:

Market test is an experiment that is usually conducted before the commercialization of a particular product, the outcome of the experiment will determine if such firm will accept the idea of the product or drop it.

there is no following so id just amuse false

ans.

heterothermic organisms include those organisms that can switch between homeothermic (having body temperature higher than environment) and poikilothermic (having variation in internal body temperature) strategies.

some migratory birds show heterothermy as they decrease their metabolic rate during cold nights to keep their body temperature low. drop in metabolic rate allows increase in production efficiency of birds that reduces the internal body temperature to make it equal to external cold temperature during cold nights.

thus, the correct answer is 'birds allow their temperature drop in order to increase their production efficiency.'